Improvement in heating-stoves



NATHANIEL A ,novmou.

mp1. in HEATING smvns.

, PATENPED 3 UL 41871 UNITED Snares NATHANIEL A. BOYNTON, OF NEW YORK, N. Y.

IMPROVEMENT IN HEATING-STOVES.

Specification forming part of Letters Patent No. 116,674, dated July 4, 1871.

To all whom it may concern:

Beit known that I, NATHANIEL A. BOYNTON, of the city, county, and State of NewYork, have invented a new and useful Improvement in Heating-Stoves, of which the following is a specification:

My invention consists in providing for cylindrical heating-stoves-whether surface-burners or base-burnersa supplemental base, constructed, substantially as herein described, with sides converging upward and downward from the central or intermediate part, adapted to rest atbot tom upon a stove-base of any proper form, and to receive at top the cylindrical body or upper part of the stove, the said supplemental base being at its upper part provided with illuminating-windows and at its widest part with a horizontal projecting ledge, constituting a fender, and serving also to reflect downwardly a portion of the heat radiated from the stovebase beneath it. Myinvention further consists in combining, with the aforesaid supplemental base, a vertical grate or basket suspended by its upper part from the body of the stove and projecting downward in the form of bars to a level sufiiciently near the horizontal grate t0 confine within the said vertical or annular grate the principal part of the burning fuel, and prevent its contact with the illuminating-walls of my supplemental base or fire-chamber. My invention further consists in combining, in the manner hereinafter described, with the aforesaid supplem enta l base or fire-chamber, a horizontal grate of any common or suitable form.

Figure 1 is a front view of a cylindrical stove with my invention applied. 2 is a vertical section of the same on the line as x, Figs. 1 and 3. Fig. 3 is a horizontal section thereof on the line 3/ y, Fig. 2. Fig. 4 is a vertical section in a plane at right angles to that in Fig. 2, illustrating the preferred mode of constructing the supplemental base, with openings or collars of equal or nearly equal diameter, to adapt it for application to stoves already made.

A may represent the body of a cylindrical stove of common construction ,1), the base thereof; C, the ash-pit. D E F represent the various parts of my" supplemental base or flue-chamber, the upper part I) being provided with illuminating-windows d and fbrmedto converge toward the cylindrical body A, which it is adapted to fit.

The lower part E of my supplemental base converges downward toward the common base 13, which it fits in like manner. It will thus appear that when my supplemental base or attachment is made for application to stoves before manufactured its upper and lower parts should be made of equal or nearly equal diameter in order that they may fit the respective parts which were before made to fit together. At the widest part of my supplemental base, which may be at or near its mid-hei ght, is formed a projecting flange, 1?, which constitutes a fender, afl'ordin a convenient rest for the feet, and serving, with good effect, to reflect downward a considerable amount of heat, which may strike its under surface from the lower part of the base of the stove. G is a grate, which may be of common construction, but it is preferably mounted within the lower part E of my supplemental base, in order that the proper relative positions of the parts may be preserved. To this end the grate maybe pivoted to a horizontal bar, I, resting in lugs J J within the annular plate E. K may represent a common shakinghandle or key, projecting horizontally from the grate G. H represents a basket or vertical grate, suspended at its upper edge from the body A of the stove and projecting downward in the form of tapering vertical bars nearly to the level of the horizontal grate G. The bars h are preferably formed of such dimensions as to leave between them spaces fully equal to their own breadth, and the taper form of said base will cause the spaces between them to increase in width downward. Within this vertical annular grate H the fuel is placed, spaces between the bars 72- affording a free accessto air, which causes an active combustion to be maintained and at fords a bright illumination through the windows 61 in the upper part D of the supplemental base.

I have described and shown a mode of constructing the supplemental base of an equalor nearly equal diameter at top and bottom to adapt it for application to stoves already made; but it will be apparent that some parts of my invention are not necessarily limited to this particular construction or relative dimensions of the parts.

The inclined form of the annular plate E adapts it to conduct ashes falling upon it freely to the ash-pan beneath without affording such a shelf as to permit the accumulation of dust. Either or both of the inclined or converging plates D and E may, if preferred, be curved vertically, so as to impart a convexity to their outer surfaces. This involves merely a question of taste, not in any manner affecting the merits of my invention.

I claim as my invention 1. The detachable supplemental base D E, constructed of largest diameter in its central part, converging upward and downward to openings of equal or nearly equal diameter, to adapt it for application to stoves already made, and provided in its upper part v i .h illuminatin g-windows (I, all substantially as herein set forth.

2. The combination of the vertical grate or basket H With the aforesaid supplemental base I) (I E, as and for the purpose specified.

3. The combination of the horizontal grate G with the supplemental base D E, constructed as described, for the purpose stated.

NATHANIEL A. BOYNTON.

VVit-nesses OCTAVIUS KNIGHT, H. O. ELLIOTT. 

